of course you can copy them :) i'll make few more pairs for sure, since i wear these so much they might desintegrate soon.. i found the fabric in local shop that sells italian fabrics.. i suspect it's mostly leftovers from previous seasons, as i sometimes see a familiar fabrics, that i've already seen few years back in a mango or strafivarius or maxmara store.. anyways, it's cheap and super easy to work with, and bonus - it never bags at the knee, what makes it perfect for the leggings, as all my other leggings tend to stretch at the knees by the end of the day